Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 226 · 40 questions

What you do (Shape makes strength): 1. Place two books 15 cm apart, low and steady. 2. Lay a flat sheet across and add coins one by one in the middle until it falls. 3. Fold the same kind of sheet into a zigzag and test it the same way. 4. Record the coins each shape holds, then wash your hands.

1. 1.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) two books (d) sheets of paper
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
4. 4.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) rolled paper tubes (d) paper with folded edges
5. 5.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a magnet (c) two books (d) a ruler
7. 7.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a roof frame (c) a hollow bird bone (d) an eggshell
8. 8.True or false: yeast is needed for the paper bridge. (a) True (b) False
9. 9.True or false: a balloon is needed for the paper bridge. (a) False (b) True
10. 10.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) fewer coins (d) more coins
11. 11.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes
12. 12.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
13. 13.True or false: a flat tissue makes a weak bridge. (a) False (b) True
14. 14.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
15. 15.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of paper (c) coins it holds (d) the kind of coins
17. 17.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
18. 18.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) a zigzag-folded sheet (d) a wet flat sheet
19. 19.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) rolled paper tubes
20. 20.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
21. 21.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a U-shaped channel (d) a flat tissue
22. 22.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
23. 23.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
24. 24.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it turns to card (c) it sags and falls (d) it gets stronger
25. 25.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) low and steady (d) on top of a pet
26. 26.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
27. 27.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) an electric tower (c) a round pillar (d) an eggshell
28. 28.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) rolled paper tubes (c) paper with folded edges (d) a zigzag-folded sheet
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a ruler (d) a battery cell
30. 30.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) a magnet (d) two books
31. 31.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
32. 32.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) fewer (d) the same number of
33. 33.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bamboo pole (c) a temple dome (d) a bridge truss
34. 34.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
35. 35.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a mirror (c) a magnet (d) a ruler
36. 36.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a wet flat sheet (d) rolled paper tubes
37. 37.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it stiffer (d) folds make it wet
38. 38.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a magnet (c) a battery cell (d) sheets of paper
39. 39.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) a flat tissue (d) a wet flat sheet
40. 40.True or false: two books is not needed for the paper bridge. (a) True (b) False

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